Roller-bearing for printing-presses.



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Patented J lily 2, 1918. 4

2 SHEETS-SHEET l.

A. T. H. BROWER ROLLER BEARING EoR PRINTING PRESSES.

APPLICATION FILED JAN. 22.1917. 1,271,423.

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AJT. H. BRowER. ROLLER BEARING FOR PRINTING PRESSES. APPLICATION FILED IAN.22.19I7.

Patented July 2, 1918.

2 SHEETS-SHEET 2.

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l UNITED srnrns rAtrium: OFFICE. i

ABRAHAM fr. H'. Bnownn, orV CHICAGO, ILLINOIS.

nonna-BEARING ron PRINTING-PRESSES.

(1,271,423. y Original application filed November 23,

To aZZ 'whom t may concern.' I I Be it known that I, ABRAHAMV T. BRowER, a citizen of the United States, and

a resident of Chicago, county of Cook, and State of Illinois, haveinvented certain new presses and seeks to provide improved'means for supporting and guiding the reciprocating bed and for holding the same against lateral movement.V n

The invention consists in the features of improvements hereinafter set forth, illustrated in the preferred forni in the accompanying drawings and more particularly. pointed out in the vappended claims. 1 In the drawings Figure 1 is a view in elevation ofthe improved printing y, press with parts broken away to illustrate .the means forv supporting and guiding Ythe reciprocating bed. Fig. 2 isa vertical section on the Vline 2-2ofFig.1. y

The horizontal frame 10 of the press is mounted on and is securely bolted to a suitable supporting standard or basev 11. These parts. are formed of cast iron and the frame 10 is4 strengthened at intervals by transverseI webs 12. At its upper portion and at its opposite side edges the frame `is provided ,with guides 13 for the reciprocatin Abed 14. -The latter is provided on its'un erside with longitudinally extending guide ribs l5 near itsedges and witha central, longitudinal, bearing rib 16, and also with transverse strengthening ribs 17.` The; frame and bed guides 13 and 15` are kprovided with grooves 18 for two sets of bearing ballsA 19. Y Eachset of bearing balls is held inv proper position by'a'spa'cer barl 20 .which is provided with openings for the individual ballsr'andwhich is arranged to slide upon the'u'pper surfaces.y

of y:the guide 13 1 on oppositeY sides i of the Y groovef18y therein.. 1 The: central portionsiof? the i' guideV kgrooves are cylindrical;l and are of the same radius as the bearing balls 19..-

, TheseY cylindrical `cent-ralv portions 2of. the

grooves preferably-.extend throughA arcs of berotated.

Specivca'tion of Letters 1atent. Y Patented J v1115r 2, 1918,y

1912,Serial No. 733,165. Divided and this application filed January 22, 1917. Serial No.' 143,575.

about 90 and the upwardly flaring side walls of the' grooves ofthe frame guides 13 andthe downwardly flaring sidewalls of the grOOVeS of the bed guides 15 are tangent toV the. central cylindrical portions thereofA and to the bearing balls. c Y The endsvof the spacer bars 20are pro# vided with stop blocks 2l which, at the ends of the movement of the bed, are arranged to engage stoppieces 22 (see Fig. 1) ifixed tothe endsV of the frame 10, so that the sets of bearing ballsare maintained in proper po sition relatively to the reciprocating type bed. .Preferably the stop pieces 22 are cov-k ered with raw hide, leather or the like.`

- To relievethe ball bearings in party fromYV the pressure of the cylinder upon the bed, the central Vbearing rib 16 has a lower, fiat,

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horizontal Working face which is arranged' to engage a supporting wheel or roller 23.

This` supporting wheel or roller ismounted' upon a short cross-shaft 24 that is journaled at its ends in the upright side Lportions of ak bracket 25. This bracket is bolted to the upper central portion of the base or standard 11 between a pair of ribs 26y thereon. Shims 27 are interposedx between the upperl part of the baseV and the bracket V25 to take up anyplay between the guiding and supporting wheel 23 and the longitudinalfrib 16 of thefbed. c

Y The supporting and guiding wheel 23 is arranged inV vertical alinement with the axis of the cylinder28 which is supported above the bed byk a pair of heavybrackets 29. The

lower portions of the cylinder brackets overlapthe outer faces ofthe frame 10andy are firmly secured thereto by upper andrlower setsof bolts 30. Preferably, asshownin Fig.-2,fthe cylinder bracketsare provided withlips 29 "which overlap kthe upper and lower edges of the frame 10. The ends `of the.A cast iron cylinder 28 are provided withhubs28 which are keyed toa `shaft3ln Each 7 bearing 32,` and 4these bearings are arranged l 1 between they v upper pends-r ofi. the Vcylinder: brackets andY capvpieces 433 which are se?, `cured* to' thel brackets Vby bolts 34. y The pro-` jectingA ends `of the shaftV areeprovided with handwheels by whichithe cylinder'rnay j The :surface "offthe, 'cylindergiis ias;

usual, throughout the greater portion ofits lengthfand-,at'its endsis provided with-.bearing langes 'wliich engage upwardly projecting bearers 87 fixed to the opposite side edges of the bed 14. *A gearWheel 38 fixed to one end of the cylinder meshes with a rack 39 fixed to one of 'the'siide edges of'the bed to thereby effect the lforward, and backvvarcf movements ofthe 'latter as the ycylinder is ,rotated in its opposite direction.

The shaft bearings 32 are provided with eccentric portions 40 Which can be oscillated to vthereby raise the ycylinder uponlthe'return'or idle movement 'of thebed. VThese eccentrics are tted' Within outer eccentrics 41 and-the latterL in turn are arranged in seats formed'in theupper Vportion of the brackets 29 and in the bracket cap'v pieces 33. The' outer eccentrics' are shifted only lWhen it `is desired to adjustthe' cylinder tov bring its tympan surface and the jan'ge's 36 Iin proper relation to the typefbedandthe bearers 37 thereon. l For convenience in' adjustingthe eccentrics 41 they arefprovided With a series 'of radial holes 42.- These outer eccentricscan onlybe shifted by removing the cap pieces 33 and once they are properly set they are securely clamped place Vand so held against movement'iby the "cap pieces which, in turn, arefheld inposition bythe bolts 34. "Each ofthe inner eccentrics'or shaft bearings is lprovided With 'a iiange 43 which overlaps the inner face'of the outer eccentric and also -abuts against theinner faces'of the lcylinder bracket' 29 andthe bracket cap 33. 'A' plate 44 similar in'size to theiange 44overlaps'the outer yfaces of these parts and is connectedtotthel main body of fthe inner Veccentric bearing by screws45tothereby hold the cylinder, cylinder shaft bearings and outer adjusting or take-up'eccentrics lin position. f

yThe inner eccentric bearings are'oscillated or tripped'by suitable mechanism, such as set forthl and claimed'E in the-prior applicationr referred to, to raise lthe cylinder durin the idle or return movement" of ythebe During'thefforvvard' or Working stroke of the bed the bearing flangesSG ofthe cylinder engageI the kbearers? ofthe bed Aand hold the same'firmlyv down upon the bearingV balls 19 and `bearing Wheelor'roller '123. The bearing balls and roller 23 thus sustain the'weight of the bed and the pressure of the cylinder'thereon, 'and the flaringside vvallsrof the 'guide groovesj18 coperateI With:

the balls to center the'bed'andfhold the'same agblst lateral movement.` By this 'arrangem'entthe bed is accurately 'guidedand held against lateral rmovement' duringits for- Ward lfor, vWorkingI stroke and the necessity ofemployingsside guides is obViated. Byadjust-ing fthe eccentricsV 41 "from time' to time, any Wear or play of the bedf'guides, bothin vertical orlateral directions, canbe takenup. 4

VItis "obvious that numerous changes'EF may bed andv hold thesainea'ga'inst lateral movebe made in the details set forth Without de- Iclaim as my invention:

1.' The conibinaton With a frame, of a 70 `frec'iprocating bed thereon, and sets of bear- 'ing'ba'lls interposed between said frame and bed, said-parts having guide' grooves forming race-Ways for said sets of balls, and said grooves having cylindrical central portions of thepsame radiusfassaid balls Iand flaring side portions tangent to said cylindrical portions 'andjto said balls.

2. Thecombination kWith a frame, of a reciprocatingbedithereon, said frame andbed having groovedl guides, Vsets of bearing balls arranged in the grooves of said guides, spacer bars having openings for the'individual'balls'slidably on said frame guides, andstop'sat the Vends of-said frame for said spacerbars, the grooves of said guides having cylindricallcentral portions of'the same radius as said balls. v

3. The combination With a frame, of a reciprocating'bed thereon, saidy bed andframe having opposed grooves at f their opposite sidejedges,'t'\vo sets ofbe'aring balls'in fsaid grooves, 'cylinder brackets -xed' to said frame and a cylinder journaled in said brackets and engaging said bed, said grooves having central cylindrical portionsv and flaring side Walls and 'coperating With said ballsto centersaid bed and holdrthe same against lateral movement, substantiallyV as described.

4. The combination with ka frame; of areciprocating bedV thereon, fsaid yframe and said' bed,v having opposed4 guides aty their'opposits side edges provided Withigrooves f' in their upper and lower faces respectively,l tvvo'sets of bearing1 balls arrangedin said grooves, spacing bars for' said balls slidably mountedonsaidbed guides, cylinder bracketslixed to said `frame and a cylinder journaled in said brackets 'andy engaging saidbed,y said grooves having cylindrical central 'portions and flaring side Walls and cooperating With'said balls nto centersaid ment. i f 115 `5. The combination with a'ffame, ofv a' reciprocating bed thereon, said frame 'and said bed having opposed guides yat vtheir 'opposite l side edges provided lWith grooves 'in their'upperfand 'l'ovverV faces respectively, tvvo 120 sets of bearing balls arranged 'in said grooves, #spacing bars for -saidxballs slidably mounted' on said bedguides, cylinder brackets fixed to said'frame, a 'cylinder' journaled in? saidpbrackets and engaging said 1bed,f"s'aid 125 bed yhaving aj: .central I bearing lgu'idenfprovided fWithU a" iat horizontal Working )face and a bearing roller 'journal'ed onsaid frame beneath "said .cylinder `and-erigaging said bearing guide, thegrooves tof-said; fguides' at` 1,30

the side edges of said frame and bed having iiaring side Walls and cooperating withs'aid balls to center the bed and hold the same against lateral movement, substantially as described.

6. The combination with a frame, of a reciprocating bed thereon, said frame and said bed having opposed guides at their opposite side edges provided with grooves in their upper and lower faces respectively, two sets of bearing balls arranged in said grooves, spacing' bars for said balls slidably mounted on said bed guides, cylinder brackets fixed to said frame, a cylinder journaled in said brackets and engaging said bed, said guide grooves having cylindrical central portions and iaring side walls and coperating with said balls to center the bed and hold the same against lateral movement, and means for vertically adjusting said cylinder, substantially as described.

7. The combination With a frame, of a horizontally reciprocating bed thereon, said frame and said bed having opposed guides at their opposite side edges provided with grooves in their upper and lower faces respectively, two sets of bearing balls arranged in said grooves, spacing bars :for said balls slidably, mounted on said bed guides, cylinder brackets xed to said frame, and a cylinder journaled in said brackets above Ysaid bed, said bed having bearing guide flanges at its side edges provided with fiat horizontal working faces at their upper edges and said cylinder having cylindrical guide flanges engaging the guide flanges of said bed and coperating with said bearing balls to center the bed and hold the same against lateral movement, substantiallyV as described.

ABRAHAM T. H. BROWER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

